SETTING UP TEMPERATURE CONTROL STAGES
For the iGrow 800 - Here is 2 video links to assist you in temperature control.
iGrow 400/800 Setpoint Programming
http://www.youtube.com/watch?v=7JGrg_Q1taQ
IGrow 400/800 - Setting up your equipment for Temperature & Humidity Stages.
http://www.youtube.com/watch?v=7CCSDeac5hY
With the iGrow 800 Controller, you can program a cooling temperature target called a “Cool Setpoint” and a heating
temperature target called a “Heat Setpoint”. The temperature range between these two targets is called the “Normal”
temperature range or stage.
If the greenhouse temperature is within the Normal temperature band usually none of the cooling or heating equipment is
on. However, some circulation fans (often called horizontal air flow (HAF) fans) may be active to maintain air movement
within the greenhouse environment. Whenever the temperature within the greenhouse moves above the cool setpoint, or
below the heat setpoint (falls outside the Normal temperature range) the iGrow 800 will enter cooling or heating stages to
bring it back in line. With the iGrow 800 you can program up to six cooling and two heating stages. These stages go from
Cool 1 to Cool 6 and Heat 1 to Heat 2. Cool 1 and Heat 1 are the least aggressive with Cool 6 and Heat 2 the most
aggressive.
In your program you will determine what equipment you want to be active in each of the stages. When the air temperature
in the greenhouse rises above the Cool Setpoint, the system enters the first stage of cooling, referred to as Cool 1. If the
temperature continues to rise, the system will enter the second stage, Cool 2, then the third stage, Cool 3 and so forth. At
each increasing cooling stage, more cooling will be brought to attempt to bring the air temperature below the cool setpoint
and within the target “Normal” temperature range. Heating works the same way.
Here is an example for a Temp Control Strategy, setting up your Day & Night Temperature Setpoints
And how the setpoints work with stages, ramping and deadbands implemented.
Here is an example for a Temp Control Strategy, assigning equipment to various Temp Stages